Damn, this is great news. Benenson Strategy Group for Jeff Merkley (9/7-9, likely voters, August in parens):
Jeff Merkley (D): 43 (38)
Gordon Smith (R-inc): 41 (47)
Dave Brownlow (C): 6 (4)
The full polling memo is below the fold, and do check it out if you like to read about good news. As you can see from Smith's job approval ratings, he's in a world of trouble: 70% of undecideds give him a negative job approval rating!